JPS6312532Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electric wire connector that can easily connect electric wires without requiring any special connecting tools.

Conventionally, to connect electric wires, you would insert the wires into the B sleeve from both sides and twist them together with the B sleeve using two pliers, or insert the wires into a straight sleeve from both sides. The connection was made by crimping with crimping (compression) pliers or the like.

However, in the case of the B-sleeve, it was necessary to twist it with both hands using two pliers, or pliers and an adjustable wrench, so it was not easy to use and required a lot of force when working on a pole with poor footing.

You can also use straight sleeves to crimp (compress)
Methods such as crimping with pliers are also used,
In this case, the worker has to carry a crimping (compression) tool in addition to the conventional portable tools, and the number of conventional portable tools alone is quite large.
There was the inconvenience of having to increase the number of tools.

The present invention was developed so that it can be easily connected by hand without the need for any special tools.

As shown in Figures 1, 2, and 3, there is a copper tube 1 having an oval hole 2 into which a plurality of connected wires can be inserted in parallel, and an insulating resin cap 3 that is attached to the copper tube 1. An insulating resin cap 3 is formed on the bottom 4 by insert-molding the head 7 of a wooden screw 6 to be screwed between the connected wires 5 inserted into the oval hole 2 so that it does not easily rotate, for example by making it hexagonal. By rotating the insulating resin cap 3 and screwing the wooden screw part 6 of the insulating resin cap 3 between the electric wires 5 inserted into the oval hole 2 of the copper tube 1, the wooden screw 6 bites into the electric wire 5. In addition, the electric wire 5 is press-connected to the oval hole 2 of the copper tube 1, and the connecting portion with the copper tube 1 and the electric wire 5 is insulated and coated with the cylindrical portion 8 of the insulating resin cap 3.

Note that the oval hole shown in FIG. 1 has protrusions 9 formed to provide a gap between the wires 5 so that the wooden screw 6 can be easily screwed into the hole, but instead of forming the protrusion 9, the oval hole shown in FIG. As shown in the figure, a protrusion 10' may be provided inside the copper tube 1 using a punch 10 on the central axis of the copper tube 1 to provide a space between the electric wires 5 into which a wood screw is screwed. Note that if this gap width is too narrow,
Although the connection strength is improved, it requires a lot of force when screwing in, so it is only necessary to set it to the level necessary for the connection.

Further, although the outside of the copper tube 1 is shown to be oval in the drawing, the outside may be made circular if necessary, and the material may be made of a conductive metal such as brass in addition to copper. Next, by enlarging the diameter of the head 11 of the insulating resin cap 3 to an allowable range and applying a non-slip feature such as a knurl, the insulating resin cap 3 can be easily rotated when connecting electric wires. Further, the wooden screw 6 may be made of a rust-proof spring material such as stainless steel, but if a spring material with good conductivity such as beryllium copper is used, a good connection can be made without damaging the screw threads.

Next, we will explain how to use this wire connector. In addition, if the insulating resin cap 3 is temporarily fixed to the copper tube 1 with the tip of the wooden screw 6 as shown in FIG. 2, it will be convenient to carry and handle. In use, insert the wires 5 to be connected into the oval-shaped holes 2 of the wire connector of the present invention from the bottom of the drawing, hold the wires 5 and rotate the insulating resin cap 3 by hand, and the wooden screw 6 will be assembled as shown in FIG. As shown, the electric wire 5 is screwed into the parallel electric wires 5 while biting into the electric wire 5, and the wedge-shaped wooden screw 6 presses the electric wire 5 against the copper tube 1, resulting in a good connection.

In addition, since the electric wire 5 is screwed into the insulating resin cap 3 with a wooden screw 6 inserted into it, the electric wire 5 does not come off during use, and the connection between the wooden screw 6 and the electric wire 5 is prevented. Contact is also good.

In addition, if the cylindrical part 8 is made long enough to cover the copper pipe 1 during connection, the live part will not be exposed, making the work safer. Also, since the live part will not be exposed even after connection, it will not be exposed to rain or dew indoors. By the way, it is easy to use and does not require taping or the like.

As described above, the wire connector of the present invention allows wires to be connected by simply inserting the wires and rotating the insulating resin cap 3 by hand, making the work extremely easy and requiring no connection tools. do not.

Furthermore, it has many features such as being economical because of its simple structure.

[Brief explanation of the drawing]

1 and 4 are explanatory perspective views of the copper tube of the wiring connector of the present invention. FIG. 2 is an explanatory assembled perspective view of the electric wire connector of the present invention. FIG. 3 is an explanatory perspective view of the insulating resin cap of the wire connector of the present invention. FIG. 5 is an explanatory cross-sectional view showing the connection state of electric wires by the electric wire connector of the present invention. 1 is a copper pipe, 2 is an oval hole, 3 is an insulating resin cap, 4 is the inner bottom of the insulating resin cap 3, 5 is an electric wire, 6 is a wood screw, 7 is the head of the wood screw 6, 8 is an insulating resin cap 3 is the cylindrical part, 9 is the protrusion of the oval hole, 1
0 and 10' are protrusions formed by the punch, and 11 is the head of the insulating resin 3.

Claims (1)

[Scope of utility model registration request] An insulating resin cap is integrally molded with a copper tube having an oval hole into which multiple connected wires can be inserted in parallel, and the head of a wooden screw is inserted into the inner bottom of the cap that is attached to the copper tube. An electric wire connector characterized in that the tip of the wire is screwed into the center of an oval-shaped hole of a copper tube and is crowned.